content: /*
   * Copyright (C) 2015-present, Ant Financial Services Group
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * 	http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.alipay.hulu.common.service.base;
  
  import java.lang.annotation.ElementType;
  import java.lang.annotation.Retention;
  import java.lang.annotation.RetentionPolicy;
  import java.lang.annotation.Target;
  
  public interface AppGuardian {
      /**
       * 当系统事件时调用
       */
      void onEventTrigger(ReceiveSystemEvent event);
  
      @Target(ElementType.TYPE)
      @Retention(RetentionPolicy.RUNTIME)
      @interface AppGuardianEnable {
          boolean value() default true;
      }
  
      enum ReceiveSystemEvent {
          SCREEN_LOCK,
          SCREEN_UNLOCK,
          APP_VISIBLE,
          APP_INVISIBLE
      }
  }
  